Magnetic properties of solid solutions with AlB₂-type structure in R–Ag–Al–Ge systems (R = Ce, Pr, Nd)

Chem. Met. Alloys 5 (2012) 16-22

https://doi.org/10.30970/cma5.0211

Roksolana KOZAK, Dariusz KACZOROWSKI, Roman GLADYSHEVSKII

For the AlB₂-type solid solutions formed in the quaternary systems R–Ag–Al–Ge (R = Ce, Pr, Nd) magnetic measurements have been performed in the magnetic fields up to5 T and in the temperature range 1.72‑400 K. It is shown that these compounds fit to a Curie-Weiss expression above 80 K. The magnetic characteristics of the compounds (ordering temperature, Curie-Weiss temperature, effective magnetic moment, high-field magnetic moment) have been determined. The effective paramagnetic moments are close to the values of free R³⁺ (R = Ce, Pr, Nd) ions.

Inverse magnetic susceptibility and magnetization as a function of temperature.

Keywords

Rare-earth / Silver / Aluminum / Germanium / Solid solution / X-ray diffraction / Magnetic measurements